Oklahoma City bombing

Oklahoma City bombing

Roberto Schmidt, AFP/Getty Images

Rescue crews and agents from several federal agencies standin front of the remains of the Alfred Murrah Federal Building in downtown Oklahoma City on May 5, 1995, during a memorial service in memory of the victims who died in the April 19, 1995, bombing.

Rescue crews and agents from several federal agencies standin front of the remains of the Alfred Murrah Federal Building in downtown Oklahoma City on May 5, 1995, during a memorial service in memory of the victims who died in the April 19, 1995, bombing. (Roberto Schmidt, AFP/Getty Images)

Rescue crews and agents from several federal agencies standin front of the remains of the Alfred Murrah Federal Building in downtown Oklahoma City on May 5, 1995, during a memorial service in memory of the victims who died in the April 19, 1995, bombing.